Application of SPST switch.

Yes... You connect 12V to the PWR terminal, and Ground to the GRD terminal. The device or circuit you're turning on connects to the ACC terminal. When the switch is switched ON, 12V is internally connected to the device and the lamp, turning both on.

"Peter"

The 12 volt lamp inside is connected across PWR and GND - so when the switch connects the battery ( ACC) to the load it lights up.

..... Phil

So the power source is connected to PWR and GRD and the load is connected to ACC and GRD. The GRD conductor could jump over the switch but then the light wouldn't work?

Any idea how the notation ACC is derived?

Mar 9, 10:15 pm, Phil Allison wrote,

Right oh. The appearance is similar to a switch in the scrap collection here marked "ARROW ENGLAND 125 V". I didn't find a useful illustration of the Arrow. Should have photographed it but the linked picture was convenient.

Thanks for the explanations fellows, ... Peter E.

ACC = ACCessory

Jeff

Thanks to the three of you. With the lighted switch, the power bar is better than new, ... Peter E.